Xantphos CAS No.: 161265-03-8

📌Specification:

Appearance:

White to off-white powder

Purity:

≥99%

Melting point :

224-228 °C(lit.)

Flash Point :

450℃

Solubility:

Soluble in organic solvents.

Package:

1KG/Bag, 25kg/Drum；or as per customer request

Storage:

Store in a dark, cool & dry place.

🧩Application of Xantphos CAS No.: 161265-03-8

1. Palladium-Catalyzed Cross-Coupling Reactions

As a powerful ligand, Xantphos greatly improves reactivity and selectivity while reducing side reactions. It works especially well for challenging substrates like aryl chlorides and heteroaryl halides.

Suzuki-Miyaura Coupling: It enables the coupling of aryl/heteroaryl halides with boronic acids or boronate esters to form C–C bonds, which supports the synthesis of pharmaceuticals, liquid crystals and functional materials.

Buchwald-Hartwig Amination: It promotes the coupling of aryl halides or triflates with amines (primary, secondary or ammonia) to efficiently build C–N bonds, which is widely used to prepare pharmaceutical intermediates including nitrogen heterocycles, alkaloids, and anti-tumor or anti-viral drug intermediates.

Miyaura Borylation: It helps convert aryl halides into aryl boronate esters, a critical step for preparing cross-coupling precursors.

Stille, Negishi and Heck Couplings: It matches well with various organometallic reagents and further expands the methods for C–C bond construction.

2. Rhodium-Catalyzed Hydroformylation

When combined with rhodium, Xantphos supports highly selective hydroformylation of olefins to produce aldehydes. It effectively controls the ratio of linear to branched aldehydes (up to 99:1), making it ideal for industrial production of plasticizers, fragrances, fine chemicals and pharmaceutical intermediates.

3. Other Catalytic Reactions

In addition, Xantphos is widely used in carbonylation, hydroesterification and hydrocarboxylation to synthesize esters, amides, carboxylic acids and other functional groups.
It also supports ruthenium or palladium-catalyzed alkylation, reductive amination and heterocycle synthesis including pyridine, indole and pyrimidine-based drug scaffolds.
Furthermore, it serves as a reliable ligand for transition-metal-catalyzed asymmetric synthesis and polymerization reactions.

Summary of Application Fields

Pharmaceutical & Chemical Industry: Xantphos is used to produce key intermediates for anti-tumor, anti-viral and psychiatric drugs (such as chlorpromazine, cytarabine, CDP-choline and more). It effectively solves challenges in C–N and C–C bond formation.

Fine Chemicals & Materials: It supports the synthesis of liquid crystals, organic optoelectronic materials, fragrances and additives.

Academic Research: It serves as a standard ligand for studying catalytic mechanisms and developing new chemical reactions.